Method for single pass large bore transseptal crossing
US12213727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2020 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Jun 9, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1475
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are methods of transseptal crossing to permit introduction of large bore catheters into to the left atrium, such as to deploy left atrial appendage closure devices or to repair or replace a mitral valve. The method may include the steps of providing a single pass, large bore transseptal crossing system, having a tubular access cannula and an energy delivery wire movably extending through the tubular access cannula. A first electrode tip on the energy delivery wire is brought into contact with a fossa ovalis and energized. The energy delivery wire and cannula are advanced into the left atrium. A large bore sheath is advanced directly over the access cannula and into the left atrium. The cannula and energy delivery wire are removed, and a large bore index procedure catheter may be advanced through the large bore sheath and into the left atrium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.